Vegetation and environmental responses to climate forcing during the Last Glacial Maximum and deglaciation in the East Carpathians: attenuated response to maximum cooling and increased biomass burning
Vegetation and environmental responses to climate forcing during the Last Glacial Maximum and deglaciation in the East Carpathians: attenuated response to maximum cooling and increased biomass burning
复制标题
东喀尔巴阡山脉末次盛冰期和冰消期期间植被和环境对气候强迫的响应：对最大冷却和增加的生物量燃烧的响应减弱
DOI：
10.1016/j.quascirev.2014.09.015
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发表时间：
2014
影响因子：
4
通讯作者：
F. Schäbitz
中科院分区：
文献类型：
--
作者：
E. Magyari;D. Veres;V. Wennrich;B. Wagner;M. Braun;G. Jakab;D. Karátson;Z. Pal;Gy. Ferenczy;G. St‐Onge;J. Rethemeyer;J. Francois;F. Reumont;F. Schäbitz
喀尔巴阡山脉是东欧和中欧末次盛冰期（LGM）期间北方和冷温带植物群的主要山区保护区之一。先前的研究证明了该地区晚冰期植被动态；然而，由于缺乏合适的沉积档案，我们对末次盛冰期植被组成的了解非常有限。在这里，我们展示了喀尔巴阡山脉最年轻的火山口（圣安妮湖、Lacul Sfânta Ana、Szent-Anna-tó）的植被、火灾和湖泊沉积的新记录，以研究末次盛冰期和随后的冰川消融期间该地区的环境变化。我们的记录表明，在东喀尔巴阡山脉的前陆和低山地区以及较高海拔的杜松灌丛中，北方森林草原植被（包括松树、桦树、柳树、杨树和云杉）的持续存在。我们证明了区域植被对全球最大降温的减弱反应。在大约 22,870 到 19,150 卡路里 BP 之间，我们发现区域生物质燃烧增加，这与全球趋势相反。区域火灾活动的增加表明可能存在极端大陆性，夏季相对温暖干燥。我们还证明了末次盛冰期之后（距今约 19,150 卡路里）直接出现的旱生草原扩张，以及距今 16,300 卡路里以来北方松树和桦木的北方林地覆盖面积的增加。植物大化石表明当地（950 m a.s.l.）存在白桦和毛桦，距今 15,150 卡路里，樟子松，距今 14,700 卡路里，落叶松，距今 12,870 卡路里。花粉数据还支持关于末次盛冰期期间一些温带落叶乔木（水青冈、榛子、白蜡树）区域存在的群体遗传推论。我们的沉积学数据还表明，距今 26,000 至 20,000 卡路里之间风尘积累加剧。
The Carpathian Mountains were one of the main mountain reserves of the boreal and cool temperate flora during the Last Glacial Maximum (LGM) in East-Central Europe. Previous studies demonstrated Lateglacial vegetation dynamics in this area; however, our knowledge on the LGM vegetation composition is very limited due to the scarcity of suitable sedimentary archives. Here we present a new record of vegetation, fire and lacustrine sedimentation from the youngest volcanic crater of the Carpathians (Lake St Anne, Lacul Sfânta Ana, Szent-Anna-tó) to examine environmental change in this region during the LGM and the subsequent deglaciation. Our record indicates the persistence of boreal forest steppe vegetation (withPinus,Betula,Salix,PopulusandPicea) in the foreland and low mountain zone of the East Carpathians andJuniperusshrubland at higher elevation. We demonstrate attenuated response of the regional vegetation to maximum global cooling. Between ∼22,870 and 19,150 cal yr BP we find increased regional biomass burning that is antagonistic with the global trend. Increased regional fire activity suggests extreme continentality likely with relatively warm and dry summers. We also demonstrate xerophytic steppe expansion directly after the LGM, from ∼19,150 cal yr BP, and regional increase in boreal woodland cover withPinusandBetulafrom 16,300 cal yr BP. Plant macrofossils indicate local (950 m a.s.l.) establishment ofBetula nanaandBetula pubescensat 15,150 cal yr BP,Pinus sylvestrisat 14,700 cal yr BP andLarix deciduaat 12,870 cal yr BP. Pollen data furthermore support population genetic inferences regarding the regional presence of some temperate deciduous trees during the LGM (Fagus sylvatica,Corylus avellana,Fraxinus excelsior). Our sedimentological data also demonstrate intensified aeolian dust accumulation between 26,000 and 20,000 cal yr BP.
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影响因子：
4
作者：
Feurdean, Angelica;Spessa, Allan;Hickler, Thomas
通讯作者：
Hickler, Thomas
影响因子：
3.7
作者：
Feurdean A;Bhagwat SA;Willis KJ;Birks HJ;Lischke H;Hickler T
通讯作者：
Hickler T
影响因子：
4
作者：
Daniau, A. -L.;Harrison, S. P.;Bartlein, P. J.
通讯作者：
Bartlein, P. J.
影响因子：
4
作者：
Fletcher, William J.;Goni, Maria Fernanda Sanchez;Tzedakis, P. C.
通讯作者：
Tzedakis, P. C.
影响因子：
4
作者：
Feurdean, A.;Persoiu, A.;Zernitskaya, V.
通讯作者：
Zernitskaya, V.